Mm. Chaudhury et Cf. Lee, FUNCTIONAL FORM OF STOCK RETURN MODEL - SOME INTERNATIONAL EVIDENCE, The Quarterly review of economics and finance, 37(1), 1997, pp. 151-183
A linear (loglinear) empirical return model is rejected for more than
half (one-third) of an international sample of 425 stocks. A generaliz
ed functional form improves explanatory power and enhances the role of
a global index in the stock return model. Additionally, the inclusion
of a lagged dependent variable seems desirable for many stocks to all
ow incomplete price response to domestic and global market variations.